eau de surface (1) stratification (1) société (humaine) (1) spectacle (1) sédiment (1) bassin de retenue (1) pyrolyse (1) plomb (1) golfe (1) effet (1) écologie (1) datation (1) âge (1) ingéniérie (1) carbonate (1) ordre (1) calcul (1) Ecology (1) Dating (1) Origin (1) Water (1) Shells (1) Pyrolysis (1) Order (1) Lead (1) Gravity (1) Fractions (1) Engineering (1) Ecology (1) Corrections (1)